Add the needed infrastructures that allow ephemeral classes (`PipeRun`s)
to be wrapped as a regular pypeline `Pipe` class. These automatically
have their dependencies tracked and propagated to the pypeline.
Drop the `MaterializeLoopScopes` pass after the re-design the loop
matching stage to work entirely on `clift`, without the need to insert a
`scope_closer` edge to guide the emission.
Simultaneously, drop the DAGify `Head` metadata insertion, since it will
not be checked anymore during the `MaterializeLoopScopes` pass.
During the `Head` election phase, we now introduce the following
additional criterion:
When processing a `GenericRegion` nested into an outer one (its
`ParentRegion`), if the inner `Region` contains the block that has been
elected as `Head` of the `ParentRegion`, we also force that block to be
the `Head` of the inner `GenericRegion`.
We add a unit test to check this behavior.
The `check-conventions` script inadvertently ignored checking the
license header in `CMakeLists.txt`. Change the script so that those are
checked. Also add the missing headers to the reported files.
Perform the abnormal (late) entries normalization in the DAGify pass.
In this way, we are exploiting the information computed by
`GenericRegionInfo` as close as possible to where it is computed the
first time (in DAGify).
Actualize the unit tests to reflect these changes.
Perform the IDS transformation, by taking into account possible multiple
divergent scopes for a certain conditional node at the same time.
This reduces the run times, since it reduces the number of time IDS is
called on a conditional, but mostly proceduce a more _compact_
`ScopeGraph`, where all the divergent scopes for a certain conditional
node rejoing the path toward the one true exit in a single point,
instead of having a chain of IDS resulting regions.
Make IDS unit tests compliant with the new multiple divergence
implementation.
* Removed syntax for defined type attributes.
* Added !clift.const<T> and removed const syntax from types kinds.
* Some restructuring of class type internals.
Ivan Krysak